US10358006B2 - Axle support for a vehicle - Google Patents

Axle support for a vehicle Download PDF

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Publication number
US10358006B2
US10358006B2 US15/683,985 US201715683985A US10358006B2 US 10358006 B2 US10358006 B2 US 10358006B2 US 201715683985 A US201715683985 A US 201715683985A US 10358006 B2 US10358006 B2 US 10358006B2
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US
United States
Prior art keywords
shells
axle support
cross member
axle
vehicle
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
US15/683,985
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English (en)
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US20170349018A1 (en
Inventor
Kai-Uwe Stoerk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Assigned to BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT reassignment BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STOERK, KAI-UWE
Publication of US20170349018A1 publication Critical patent/US20170349018A1/en
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Publication of US10358006B2 publication Critical patent/US10358006B2/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/18—Multilink suspensions, e.g. elastokinematic arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/15—Mounting of subframes

Definitions

  • the present invention relates to an axle support for a vehicle, in particular for a vehicle having an electric drive.
  • a vehicle having an electric drive With respect to the prior art, reference is made by way of example to EP1253028 and, in particular, to DE102012005561.
  • FIG. 1 shows (with the exception of the parts having the designations 12 and 14 ) a conventional axle support.
  • the conventional axle support has two longitudinal carriers 2 , 3 , to which in each case one wheel suspension system 4 is fastened.
  • the two longitudinal carriers 2 , 3 are connected to one another via crossmembers 107 , 108 .
  • a holding device 9 extends parallel to the crossmembers 107 , 108 , on which holding device 9 a constituent part 10 of an axle regulating system (here, an actuator of a rear axle steering system) is fastened.
  • vehicle axle supports are of hollow or shell-shaped construction, inter alia, for saving material and therefore vehicle weight or for reasons of optimized stiffness and strength.
  • DE102012005561A1 which is mentioned above, describes a subframe in a vehicle.
  • the subframe has in each case two crossmembers and longitudinal carriers.
  • two crossmembers which are constructed by way of, in each case, two shell elements are illustrated, which crossmembers in each case have a hollow construction as a result of the connection of the two shell elements.
  • improvements in the stiffness and strength properties of the subframe are to be achieved by way of a hollow or shell-shaped construction of this type of the crossmembers.
  • EP1253028 describes a vehicle axle support or a link of a motor vehicle suspension system, which vehicle axle support or link has a free interior space, that is to say a cavity, in its cross section at least in sections. This cavity is utilized to accommodate hydraulic lines in a protected manner. It can be avoided here that the lines are damaged by environmental effects, such as by stone chipping.
  • an optimum installation space design plays a role which is becoming more and more important.
  • the complexity of the vehicle components and their accommodation in the vehicle itself likewise increases.
  • the conventional axle supports which are illustrated in the prior art leave a relatively small amount of installation space free for the integration of added vehicle constituent parts, such as an electric drive, into the axle support.
  • an axle support for a vehicle is, in particular, a two-track motor vehicle.
  • the axle support is particularly preferably used in conjunction with an electrically driven vehicle.
  • the axle support has a left-hand longitudinal carrier for fastening a left-hand wheel suspension system, and a right-hand longitudinal carrier for fastening a right-hand wheel suspension system.
  • at least one cross member which connects the two longitudinal carriers is provided for transmitting chassis loads. It is provided within the context of the invention that the cross member is formed by way of two shells which are placed onto one another. The two shells are connected to one another such that they can be released without destruction.
  • a cavity remains between the two shells of the cross member, which cavity can be utilized for further constituent parts of the vehicle, in particular for constituent parts of an axle steering system.
  • both simple initial assembly and later maintenance of the constituent parts of an axle steering system which are situated in the cavity are possible.
  • can be released without destruction is to be understood to mean, in particular, every connection which is not integrally joined. The two shells are therefore not connected to one another, in particular, by way of welding, brazing or adhesive bonding.
  • a riveted connection is possible here, since said riveted connection can be released merely by way of destruction of the rivet, the two shells remaining completely un-destroyed in the process.
  • a screw connection between the two shells will be selected here.
  • One of the two shells can also be of flat configuration and therefore have the shape of a cover. It is merely decisive that a cavity which can be utilized remains on account of the construction of the cross member according to the invention.
  • the axle support particularly preferably includes at least one constituent part of an axle steering system.
  • the constituent part is installed according to the invention in the cavity between the two shells.
  • the axle steering system is particularly preferably a rear axle steering system.
  • the constituent part which is integrated into the cavity is particularly preferably an electric, pneumatic or hydraulic actuator of the axle steering system which, as is customary, is configured as an Ackerman steering system.
  • the actuator is advantageously connected via a corresponding linkage to the wheel suspension system, more precisely to its wheel support.
  • an electronic power system can also be accommodated in the cavity, for example.
  • the axle support advantageously includes a holding device which is connected on both sides to the longitudinal carriers.
  • the holding device extends through the cavity between the two shells of the cross member.
  • the constituent part of the axle steering system is advantageously fastened to the holding device. Direct fastening of the constituent part of the axle steering system to the shells therefore does not take place, with the result that assembly and dismantling are facilitated here.
  • one of the two shells is fixedly connected directly to the two longitudinal carriers.
  • the two shells can also be connected by way of their respective ends directly to the two longitudinal carriers. This results in a very stiff structure.
  • the cross member has an overall length.
  • the overall length corresponds substantially to the spacing of the two longitudinal carriers.
  • Each of the two shells preferably extends over at least 80%, preferably 100%, of the overall length.
  • at least one of the two shells has to extend over 100% of the overall length.
  • the axle support advantageously includes a further cross member and a plate-shaped shear area.
  • the plate-shaped shear area is connected to the two cross members, it being provided that the shear area is connected to the further cross member such that it can be released without destruction.
  • the shear area is connected merely to one of the two shells. This shell therefore forms a unit together with the shear area, which unit can be dismantled, for example by way of bolts being released.
  • the axle support advantageously includes an electric machine for driving the vehicle.
  • the electric machine is arranged between the two longitudinal carriers. If two cross members are used, the electric machine is advantageously arranged between the two cross members. Simple access to the electric machine is always possible from below by way of the one shell with the shear area being dismantled.
  • the two-shell construction of the cross member makes the use of different materials possible. It is provided, in particular, that the lower shell which is connected to the shear area is manufactured from fiber reinforced plastic.
  • FIG. 1 shows an axle support in accordance with the prior art, along with a diagrammatic outline of the invention.
  • FIG. 2 shows a cross section of an axle support in accordance with the prior art.
  • FIG. 3 shows a cross section of the axle support in accordance with one exemplary embodiment of the invention.
  • the axle support according to the invention includes two longitudinal carriers 2 , 3 .
  • one wheel suspension system 4 is arranged on the two longitudinal carriers 2 , 3 .
  • the respective wheel support is connected via wheel control components (links) to the longitudinal carriers 2 , 3 .
  • a plurality of vehicle body attachment points 6 are configured on the longitudinal carriers 2 , 3 . These vehicle body attachment points 6 serve to fasten the axle support 1 to a vehicle body of the corresponding vehicle.
  • FIG. 1 shows two cross members 107 , 108 in accordance with the prior art for connecting the two longitudinal carriers 2 , 3 .
  • FIG. 2 shows a cross section through an axle support in accordance with the prior art.
  • At least the rear cross member 107 is replaced by the construction which is shown in FIG. 3 . This is indicated diagrammatically in FIG. 1 by way of the components 12 and 14 .
  • FIGS. 1 and 3 show, furthermore, that the axle support 1 according to the invention has a holding device 9 which is connected by way of its two ends to the longitudinal carriers 2 , 3 .
  • a constituent part 10 of an axle steering system is seated on the holding device 9 .
  • this is a hydraulic actuator of a rear axle steering system.
  • FIG. 3 shows the construction according to the invention.
  • the cross member 107 in accordance with the prior art is replaced by the cross member 7 according to the invention.
  • the cross member 7 is of two-shell construction and therefore includes a first shell 11 and a second shell 12 .
  • the second shell 12 is arranged below the first shell 11 .
  • a cavity results between the two shells 11 , 12 , which cavity is utilized for receiving the holding device 9 with the constituent part 10 .
  • the two shells 11 , 12 are connected to one another via a plurality of screw connections 13 (shown schematically) such that they can be released without destruction.
  • FIG. 3 shows the cross member 108 in accordance with the prior art.
  • the cross member 108 can additionally be utilized in the construction according to the invention.
  • the shear area 14 is plate-shaped and extends substantially in the horizontal plane.
  • the shear area 14 can also be connected to the second shell 12 in an integrally joined manner. It is decisive that the shear area 14 is advantageously connected to the further cross member 8 such that it can be released without destruction. This results in the possibility of dismantling the second shell 12 together with the shear area 14 during servicing. As a result, both the cavity in the cross member 7 and the intermediate space between the cross member 7 and the further cross member 8 are satisfactorily accessible.
  • the space between the two cross members 7 , 8 is advantageously utilized for integrating an electric machine 15 .
  • the electric machine 15 in turn serves for sole or assisted drive of the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)
  • Body Structure For Vehicles (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
US15/683,985 2015-04-23 2017-08-23 Axle support for a vehicle Active US10358006B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102015207402.1 2015-04-23
DE102015207402 2015-04-23
DE102015207402.1A DE102015207402A1 (de) 2015-04-23 2015-04-23 Achsträger für ein Fahrzeug
PCT/EP2016/054400 WO2016169686A1 (de) 2015-04-23 2016-03-02 Achsträger für ein fahrzeug

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/054400 Continuation WO2016169686A1 (de) 2015-04-23 2016-03-02 Achsträger für ein fahrzeug

Publications (2)

Publication Number Publication Date
US20170349018A1 US20170349018A1 (en) 2017-12-07
US10358006B2 true US10358006B2 (en) 2019-07-23

Family

ID=55453172

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/683,985 Active US10358006B2 (en) 2015-04-23 2017-08-23 Axle support for a vehicle

Country Status (5)

Country Link
US (1) US10358006B2 (zh)
EP (1) EP3286068B1 (zh)
CN (1) CN107207048B (zh)
DE (1) DE102015207402A1 (zh)
WO (1) WO2016169686A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018118785B4 (de) * 2018-08-02 2021-03-04 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Hilfsrahmen für ein Kraftfahrzeug
DE102021131518A1 (de) 2021-12-01 2023-06-01 Bayerische Motoren Werke Aktiengesellschaft Anordnung einer Lenkeinrichtung an einem Achsträger eines Kraftfahrzeugs, insbesondere eines Kraftwagens, sowie Kraftfahrzeug

Citations (32)

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EP0987166A1 (en) 1998-09-16 2000-03-22 M.A.C. S.p.A. A structural element for a motor vehicle
DE10058113A1 (de) 2000-11-22 2002-06-06 Volkswagen Ag Hilfsrahmenmodul
DE10107960A1 (de) 2001-02-20 2002-08-29 Volkswagen Ag Hilfsrahmen für ein Kraftfahrzeug
EP1253028A2 (de) 2001-04-25 2002-10-30 Bayerische Motoren Werke Aktiengesellschaft Fahrzeug-Achsbauteil
US20030107200A1 (en) * 2001-12-10 2003-06-12 Trw Inc. Rack housing for steering gear
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DE10352078A1 (de) 2003-11-07 2005-06-09 Volkswagen Ag Hilfsrahmen für ein Kraftfahrzeug
US20060012162A1 (en) 2002-09-30 2006-01-19 Magna International Inc. Cross member for a motor vehicle
EP1686042A1 (en) 2004-03-31 2006-08-02 HONDA MOTOR CO., Ltd. Subframe for vehicle, and bush installation structure
WO2007080281A1 (fr) 2005-12-19 2007-07-19 Renault Trucks Vehicule tout terrain a plusieurs essieux moteurs
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US20110062677A1 (en) 2009-09-11 2011-03-17 Honda Motor Co., Ltd. Integrated steering gear, frame member and engine mount base
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DE102012005561A1 (de) 2012-01-28 2013-08-01 Edai Technical Unita A.I.E. Hilfsrahmen für ein Kraftfahrzeug
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CN103687779A (zh) 2011-07-05 2014-03-26 Ksm铸造集团有限公司 用于驱动装置的、包含集成支架的轴支座
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US8818700B2 (en) * 2008-02-29 2014-08-26 Daniel Moulene Motorised vehicle with controlled inclination
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US9469344B2 (en) * 2014-02-03 2016-10-18 Autotech Engineering Deutschland GmbH Subframe for a motor vehicle, in particular a front axle subframe, and bodywork comprising such a subframe
US9616933B2 (en) * 2015-01-16 2017-04-11 Mazda Motor Corporation Sub frame structure of vehicle
US9616724B2 (en) * 2015-01-29 2017-04-11 Honda Motor Co., Ltd. Subframe structure for vehicle
US9682727B2 (en) * 2015-01-16 2017-06-20 Mazda Motor Corporation Sub frame structure of vehicle
US9707813B2 (en) * 2013-03-15 2017-07-18 Mclaren Automotive Limited Suspension system
US20170203628A1 (en) * 2014-04-09 2017-07-20 Hagie Manufacturing Company Agricultural vehicle including ride height adjustable suspension
US9783234B2 (en) * 2015-01-16 2017-10-10 Mazda Motor Corporation Sub frame structure of vehicle
US9895949B2 (en) * 2015-12-04 2018-02-20 Ship And Ocean Industries R&D Center Retractable suspension system

Patent Citations (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0987166A1 (en) 1998-09-16 2000-03-22 M.A.C. S.p.A. A structural element for a motor vehicle
DE10058113A1 (de) 2000-11-22 2002-06-06 Volkswagen Ag Hilfsrahmenmodul
DE10107960A1 (de) 2001-02-20 2002-08-29 Volkswagen Ag Hilfsrahmen für ein Kraftfahrzeug
EP1253028A2 (de) 2001-04-25 2002-10-30 Bayerische Motoren Werke Aktiengesellschaft Fahrzeug-Achsbauteil
US20030107200A1 (en) * 2001-12-10 2003-06-12 Trw Inc. Rack housing for steering gear
DE60305517T2 (de) 2002-09-30 2007-04-26 Magna International Inc., Aurora Querträger eines kraftfahrzeugs
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EP1686042A1 (en) 2004-03-31 2006-08-02 HONDA MOTOR CO., Ltd. Subframe for vehicle, and bush installation structure
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WO2007080281A1 (fr) 2005-12-19 2007-07-19 Renault Trucks Vehicule tout terrain a plusieurs essieux moteurs
DE102006058993A1 (de) 2006-12-14 2008-06-19 Volkswagen Ag Hilfsrahmen für ein Kraftfahrzeug
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US9707813B2 (en) * 2013-03-15 2017-07-18 Mclaren Automotive Limited Suspension system
US9238394B2 (en) * 2013-07-11 2016-01-19 Audi Ag Subframe for a motor vehicle
DE102013013325A1 (de) 2013-08-09 2015-02-12 Audi Ag Hilfsrahmen für ein Kraftfahrzeug
US20160194029A1 (en) 2013-08-09 2016-07-07 Audi Ag Subframe for a motor vehicle
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US9682727B2 (en) * 2015-01-16 2017-06-20 Mazda Motor Corporation Sub frame structure of vehicle
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Title
Chinese-language Office Action issued in counterpart Chinese Application No. 201680007620.5 dated Apr. 29, 2019 with English translation (12 pages).
Chinese-language Office Action issued in counterpart Chinese Application No. 201680007620.5 dated Sep. 5, 2018 with English translation (nine pages).
Cover page of EP 1 966 029 A1 published Sep. 10, 2008 (One (1) page).
German-language European Office Action issued in counterpart European Application No. 16 707 737.9 dated Nov. 21, 2018 (eight pages).
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Also Published As

Publication number Publication date
CN107207048A (zh) 2017-09-26
US20170349018A1 (en) 2017-12-07
EP3286068A1 (de) 2018-02-28
DE102015207402A1 (de) 2016-10-27
WO2016169686A1 (de) 2016-10-27
CN107207048B (zh) 2019-11-15
EP3286068B1 (de) 2020-01-29

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